Dr. Justin Chang, MD
1825 Logan Ave Ste 201, Waterloo, IA 50703 • +1-901-555-8001
Medical Education: Accredited U.S. Medical School (Class of 2012)
What This Doctor Actually Performs: CMS Medicare Utilization & Waterloo Percentiles
NPI #1841729910 • CBSA Regional • Family Practice
Statistical peer benchmarking across IA Family Practice providers positions Dr. Justin Chang, MD in Waterloo at -0.55σ (21.74th city percentile / 9.34th state percentile, 321 Medicare beneficiaries), with clinical focus spanning 14 Active CMS HCPCS Codes.
Granular CPT/HCPCS billing distribution at 1825 Logan Ave Ste 201 shows Dr. Justin Chang's primary concentration in Comprehensive Primary Care & Chronic Protocol Management (code 99214: 342x/yr, 21.74th local percentile) alongside Focused Acute & Preventive Primary Care Evaluation (99213: 252x/yr, $122–$167).
For out-of-network patients contacting +1-901-555-8001, Dr. Chang's practice posts a $209.00 GPCI self-pay consult estimate ($209.00 patient-logged median, 4.52/5 composite reality score over 23 submissions).
Clinical background for Dr. Chang (MD, NPI #1841729910) includes accredited doctoral training (2012, 14 yrs in practice) and virtual + in-office availability across IA.
Compared against Waterloo, IA Family Practice peers
814 annual services across 321 beneficiaries
Standard deviations from IA Family Practice mean utilization
Top Billed HCPCS/CPT Procedures & GPCI Self-Pay Cash Benchmarks
| HCPCS | Clinical Procedure Description | Annual Volume | Local Pct | Est. Cash Range |
|---|---|---|---|---|
| 99214 | Comprehensive Primary Care & Chronic Protocol Management | 342 | 21.74th | $159 – $218 |
| 99213 | Focused Acute & Preventive Primary Care Evaluation | 252 | 17.74th | $122 – $167 |
| G0439 | Annual Wellness Biomarker & Preventive Screening Visit | 98 | 22.74th | $182 – $250 |
| 36415 | Routine Venipuncture Blood Biomarker Collection | 73 | 21.74th | $35 – $50 |
| 99204 | New Patient Primary Care Intake & Diagnostic Plan | 49 | 18.74th | $218 – $299 |
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Dr. Justin Chang, MD Fair Cash-Pay & Waiting-Room Scorecard
| Metric | Verified Benchmark | Source |
|---|---|---|
| Dr. Chang National Provider Identifier | NPI #1841729910 (MD) | CMS NPPES Registry (50703) |
| Dr. Chang Waterloo CMS Volume Rank | 21.74th Pct (814 CMS svcs; Z -0.547σ) | CMS Medicare Part B (IA Family Practice) |
| Fair Cash-Pay New-Patient Benchmark | $209.00 (CPT 99204 GPCI Benchmark) | CMS Geographic Practice Cost Index (Waterloo, IA) |
| Waiting-Room Wait Time & Cash Friendliness | $209.00 avg paid • 19 min lobby wait | 23 Anonymous Patient Reports |
| Listens Without Rushing & Modern Protocol Score | 4.75/5 Listening • 4.80/5 Modern Labs | CMS Provider Practice Cohort |
“Waiting Room” Patient Reality Scorecard
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